Can-soldering machine.



G. H.`STEWART.

GAN SOLDQERING MACHINE.

APPLIUATION FILED MAY 2s. 1907.

926,6 1 8. Patented June 29, 1909.

1H: Naam: Pan-Rs no., wnsmncrow. o. c.

G. H. STEWART. CAN SOLDERING MACHINE. APPLIOATION FILED MAY 2s, 1907.

926,6 1 8 Patented June 29, 1909.

2 SHEETS-SHEET 2.

rus wams msn-R: co.. wAsHuvnmN, :a` eA GEORGE ll. SlllYi'ARf, Oli LOS ANGILICS, CALIFORNIA/M CAN-SOLDERING VIACHIE Application filed May 28,

To ai] iifi'iom it may concern:

Be it known that l, GEORGE ll. Sinwlxii'r, a citizen of Vthe United States, residing at Los Angeles, California, have invented certain new and useful lniprm'einents in Can- Soldering Machines, of which the followingl a speci'l'lcation.

lily invention is an improvement in can soldering machines ot the type shown for instance in Letters Patent of the United` States granted to nie July Vl l, 1905, $794692. My present improvement concerns particularly the driving connections lor the soldering element or elements and means of adjiistnient whereby the machine adapted to solder cans of different diameters. ln

the nia-chine disclosed in the said patent,

the cans are rolled along a way or trough by l adjusting screw 2() at its upper end is promeans of a flexible chain or like means traveling along the way or trough and bearing upon the cans resting thereon so as to roll thein from end to end of the said way and l to receive a wrench whereby the screw may be turned.

past the soldering units or elements.

ln iny present machine l employ a plurality of soldering units, though l may use one or more such units, and l provide means wherebyT the said soldering units may be adjusted vertically toward and from the way or trough to suit the dill'erent diameters o'f 1 cans, and at the saine time the said solderl feed nieinbers for the solder. l also provide nieans whereby the cham lor rolling the cans along the wav or trough may be adjusted to 1 is a front View of a machine einbodVuifl in Y improvements. Fig. l is an end view of the machine. Fig. 3 is a detail yiew of the solder feed disks or wheels and the parts associated therewith. Fig. Ll is an enlarged View of one of the solder feeding elements in its relation to the can. trough and can.

Fig. .5 is a front View similar to Fig. Vl showing one of the soldering units or elements and means for supporting the saine. Fig. G is a View of one of the supporting posts and bracket adjustable thereon.

ln these drawings, l, represents the way y or trough upon which the cans are rolled along Vfreni end to end7 said trough or way being supported upon a suitable frame workas at 2. This way or trough holds the cans in inclined position they are rolled along itl and thus presents the end seam to the Specification o' Letters Patent.

ing units maint-ain their operative conneci tion with the means loi' driving the rotary l l and a toothed `wheel 230 eoipei-ating with a Patented June 29, 1909.

1907. Serial No, 376,175.

soldering devices. AFor rolling the cans along the trough, l. employ as in the patent referred to, a llexible member as a chain 5%, which passes around directing wheels 1;5, the latter of which is driven from a shaft journaleil in a bracket 7, the said shaft havi ing a pinion S thereon meshing with the gear wheel E) ou. the shaft of the wheel 5. 'lhe shaft has thereon a belt wheel it), which is driven through a belt from any suitable source of power. rlfhe soldering units represented generally at i2, i3, are supported upon a frame work consisting of rods or bars '14, extending between brackets lmflt, which are in turn supported upon posts or standards I7 of the frame. An adjusting screw 2i) extends down through the post and into a nut 2l ou the bracket. The

Vlit will now be seen that the brackets carrying the supporting rods or bars lei may be raised or lowered by turning i the screws 20.

By this means the whole gang of soldering elements or units maybe adjusted at one operation to suit different diameters of cans. Within certain limits of adjustment the flexibility of the chain will autoiiiatically adapt itself to dill'erent sizes of cans7 but l have. provided means wherebyY the chain also may be adjusted for dilfereut sizes of cans. lior this purpose lY support the chain wheel i upon au. arm 25 y secured to the bracket l5. 'l`he chain supporting and directing wheel is jouriniled :is before stated in the bracket 7, and this bracket may be adjusted as a whole upon its supporting po'st 26 by turnl ing the adjusting screw 2S.

l As in the patent ahoye referred to, each soldering unit comprises a feed wheel or disk 29 cooperating with :mother wheel 20 to engage and feed the solder wire downwardly pawl or dctent 3l for controlling the feed. ln the present case vl. arrange the feed wheel and the toothed wheel sido by side upon a l shaft .'32 which has its bearings in the exteny sions l5 ol' the brackets '154ml (l above dei scribed7 and this shaft l. drive by :i Vflexible l shafting 31h-Slt freni the shaft (3, through a worin 35 and worin n heel 36. 'lhe universal l coupling betw een the vllexible shaft sections 33-34 is indicated at 37, and a like coupling is employed at 3S between the shaft section and the feed s raft S2.

ln my present machine, lile that disclosed in the patent aforesaid, l employ a friction drive between the driving' shaft and the solder feeding' .yliieel. This consists in the present of a d'sl SSX splined 39 to the shaft 32 and hearing' upon illing Babbitt metal, carried by a dish il loose on the shaft to which is connected solder feeding' Wheel 29 by screws 42. The friction drive disk 3S is pre L l against the disk il or against the Bab itt metal carried thereby by spring 43 bearing at one end against collar lll 'iiXc-d on the shaft. The dish carries the toothed rim or '-.vhoel Si) with which the detent Si cooperates. Tirhen no can is passing' the solder feeding' device the detent Si is in its lowermost position engaging the toothed rim 3G and the rotation of the shaft 32 will therefore have no eff t in feeding solder 'he friction d' l* 38 will simply turn against the face of dieA el 'Without moving the same because said dish 1s held by the dctent 3i, but upon the arrival of a can at the proper point for soldering the bar or rod l5 carrying the said detent will be lifted, thus freeing' the toothed rim and the disl 4l, whereupon the same is rotated by its frictional Contact with the constantly rotating' friction disk S8 and the solder feed Wheel 2.() partaling also of this movement- Will feed the solder to the can through a suitable solder directing' tube il, vhich in this case l ji'irvetally support at the point 46 so that the lower d of the solder may have a lateral movement by reason of the swinging' of the solder tube and thus follow up the movement of the can in passing' the solder point. rfho Wheel 29 above meni tioned serves to press the solder Wire aga-inst the feed Wheel 29, it being' carried by an arm 29X pivoted at 2Q and under tension of a spring 29a.

The rod 45 carrying the detent 3l is raised by an angularly shaped lever L17 suitably pivot-ed at 47X andhaving its short arni 47 engaging' the levier end of the rod and having 'ts long arm extending' into the Ygrat-h traveled by the can so as to eontaet wit' fr can body and thus control the solder feed' action by the nresence of the can and rfb ,o said can arriv the proper point.

Tfith my the driving' extends lengt the Way or trough for the cans, noticed that l can emiloy any desire Y ber of sets of these solder feeding' de' units. ri`hey can be arranged Y after the other vfill feed sol .f and in adjusting' the iiachisizes of cans all of the units will b vertically the one operation.

for moving the cans along the under any suitable number of idlers as at 48. The rods or frame bars may be provided With any suitable stay brackets 4) tor giving stiifn to the frame Work for supporting the soldering' devices, and these stay pieces 49 may also have bearings for the shaft 32. lt will be observed that the solder feeding units may be adjusted vertically Without disturbing' the connection between the shaft and` the driving means for the reason that this connection comprises the flexible shaitine' The toothed Wheel 80, it -will be noticed from 4, is formed in sections so that these sections i'y removing;` the screws 30X can be removed from the machine Without dismantling any of the mechanism. rllhis construction is for the purpose of enabling wheels having` differently spaced teeth to iirc used so to vary the extent ol1 feed of thc solder. By this the feed can be made to suit diiicrent sizes of cans or different conditions, for it will be understood that the spaces beta'ecn the teeth control in a measure the amount of solder fed. lv'liita Widely spaced teeth when the detent 3- is lowered to enthe toothed 'heel the feeding movement will continuo until the tooth arrives in Contact with the detcnt, and of course with teeth arranged close together this contact will take place sooner than -with widely sitaced teeth, and consequently the feeding' action will be stopped sooner with the closely spaced teeth than with the Widely spaced teeth.

Reverting to the solder applying' units these are located on the shaft 32 between collars 50, liet, adjustably ihied on the shaft by set screws as shown in l and 3. By this arrangement the units may be spread apart more or less along the shaft 32 to secure the application of feeds of solder in proportion to the lengths of seams, or in other Words in proportion to the circumference of the cans.

The solder being' melted by the heat :oreviously applied to the can it is clear that the heat for melting is extracted or conducted from a very small of the metal of the can and therefore it is 'possible should an eX- cessivc feed of solder be taking' place to overthe demand, at each point of contact of the solder, for heat from tho surrounding' or substance to melt solder. lt will be clear for instance that the heat in any square inch of can area with the heat at a sate degree will melt just so much sol( er, and no more. lf the heat is increased the can is burned. .lf

solder is forced upon the can in excess of that ing llio soldor to tho sonic which tlio liant in the metal Cnn toko cairo of, it of Course will not molt. lifilh my pi'isont inipi'oVeni-snt l. can suodividoI thisy nniount ol` solder for they senin into manly portions :is nro required for perli't Work so that they l ont units in @zich :iron lroin which tho host is oonduoted for soldering' will hoff@ only, sity, onoliiill, ono-third, or ono-fourth, iis tho 'use may lio, of tho work to do.

By employing' :i 'pivot/ed soldor lived tulio the contacting; lend ol 'tho si'ilder miro lollo\.=.'s up in ai inmsurs tln trsrifling inocinfsnt oi tl s con, thus 'pi'rX/oiiting fric/tional insistono@ :ind maintaining; Contact for o.. suliioiviit length ol' timo lor tho propia' inolting; @floot on tho soldsr. The solder locd tnlzn turned to norinil Apositi n l y si i'i'fsigifht 5l und :in odjustzillo stop limits thi` rotin-cling; inoVoin-ont oi tho sziid tulyo. This :nliustzwlo stop Consists ol'A n 'linger 52/ ,:iri'iod oy n rod 53 ndiustsldy lisld ly :i sot s'i'on' in :in iii'in 55, of llo from@ work.

l do not limit niysslf to :i pivotzilly mounted solder lood tulo, :is ir otlior .vsvs to follow i p t io iiiorc-inont of in; V lio ni'i'iniggd in @zich con for :L Certain distano;` :ind thon.

ino've hook, so :is to not in ooniiiotion with tho next can as it comes along'. Any torni of reciprocal/ino' or oscillating' solder applying dovico, thQi'r-loro, is W'tliin thtx scopo ol my .infontiignr lf claim my invention :w

1. ln combination in o. con soldering' ninoliino, a Way upon which tho Clins are supported and along which 'thc-,Y :iro rolled, said wrijf boing' copiililo or 'Giving' @zins ot dill'oi'- ont dioinstors, solder 'feeding' dovioos to food tho wir@ solder into direct Contact with tho onlus, ond moons Wlioroliy tho soldering do- Vioss may adjusted vertically in roliilion to the mi); to suit @uns of dil'oron t diameters, sulsstzintinlly as dosorilod.

2. ln ooinltfinzition in :i cnn soli'ioi'ingg' mnoliiiio, s Way along' which tho @zins iro i'ollid and onpzilwlo of receiving cans of di'l'ori'nt inns, ii 'lloxililo momior hearing on tho clins or moving' tlioni along' thv Wi J', soldor foodine; moans post which tlic finis iro rolled :nid which feeding' moons directs the solder wire in Contact with the omis, ind moons lor sdjusting' the soldering' iii/onus vertically to suit ozins ol'r diil'oront dininotors, siihstzintizilly ns descr l'fi'd.

3. ln Comlii iiitioii in n inzioliino for soldaring the ond seams of unis, i 'muy along wliisri the 'uns :iro rollsd, n. plurality of sol-dining units arranged successively to appl)v soldoi' to tho con, infr-uns for moving' tlio inns dong thcy 'fr ny, and inmins loi' adjusting' in unison tlipluri .ty ol soldn' applying units, sul)- stzin iii-ily :is desoi'iliod.

.in combination in nuu'liino to: soldoi'H .IHN l.'\-. 'L Lv l soioui zippo, ing units loL sonni ol' tlu moans for .moving tho (uns post tl sii-id plurnlity ol soldvi' applying units, :ind inodns for :nijusting' tho smid plurnlityY of soldz'r zipplyinfg units in unison to-.rzird und li'oin the minis, sulz-stznitizill)V :is dosoribod.

5. ln ('oinliiimtion, soldni' applying inonins including' soldoi' funding dovioos, :i support :dong 'which tl'o onus or@ inovod, u. shzilt loi' driving' tho solder applying moons, smid slmlit oxtinding long' li viso ol the` sziid support, infuus l'oi' :ulinstiiijg tho said shalt :ind tlio soldsr applying moons to?. :rrd :uid li'oin tho support, und lloxil'flo shn-lting' for d 'iring tho sind shult, sull-slniitiolly :is disoi'ilx'd.

6. ln ooniiiiinition in n` machin@r for :tppl \fing solder to tho ond soiiins ol can s, it' muy longl ulrich tlio 'uns :tro inorcd, soldor :tp-

fing' inoiuis, including; u. soldar feeding' dw '9, :1 shalt oxtonding; lonfrg'l'lrv -s of tho su i- 't for tho ori-ns :ind in driving oornmti( n .th thai soldi'r applying modus, :i llr'xiiilo nniiilior for moving tho cnfis :dong thi support zi driving' .ihsol for thi' snid llixililo nn'nilior, n driving' pudor, slnil'ting oonnooted llixilily 'with tho solder funding' slnilt,

g'nziru ont?. son tho pulliy zuid the sziid slni-lting :rnd gearing liit'zxoi'n thoy 'nid pull@Y iind tho drive vlirrl of tho lloxilili. nioiiilcr, substantially :is described.

7. In combination, ii 'v'\:u. \f along which tho clins nro moved to bo soldorod, solder food moons including' :i soldoi' foo/ding' monili/or, :i oliziin for rolling tho @uns :dong tho nay, :i shaft for driving` the solder foodiiig' inonilior, said shaft oxtonding' longitudinally of tho way, llsxiblo shutting also oxiiiding' longitndnnillyY of tho mty for driving tho soldor fcoding sliiil't, iiicztns for adjusting tho solder feeding' shaft .',i.'ticzilly, und moons for driving' the chain, sulJstaintizilly :is described.

S. In combination in :i ciiiioiid sornnsoli ing ininfliino, u. 'n ny :dong ".i'hioh thev cans :iro moved, solder opplyiiig mouns, :i oliziin for i'olling' tho mins :dong tho snid vfziy, und inoiins l'oi' adjusting tho solder applying' menus :ind thi' Qlniin vortimilly to suit cons of dii'i'or-Qnt sitios, substantially :is dosoribo l.

In combination in :i 'nu soldoi'ing mitchino, moons for moving tho Cons continuously pri-st thv solder station, incluis for proli sting tho finis, solder feeding moons, :i guido tulo@y for tlu soldor pivotzilly supported :ind thoi'fshy having' inovoiiiont by tho contact of tho soldor A'with tho moving Cain to folloif tho inovoinont olz sziid con, ini'iins loi' r0- turning said tubo to noi'nnil position, :ind :in ndjustiiblo stop for dotoi'mining sziid noriinil position, substantially .is dosoi'ihod.

10. .ln coinliiniition in ii min soldoring' inzicliino, incluis l'or feeding tho soldvi' comprising :i li'ictioind driCing' dovioo, n, food n'lioil, :i tootliod 'ofhool i'oniiootod with tho food .Ylifeol, :i dotont for :ii'i'osting tho tootliod i'rlu'ol, sind tootliod '.xhiol boing' roinovzibln und intii'clinngiiiiilo .with toothod wluils having diiierentiy spaced teeth to suit the cans of different sizes or different periods of soit er feeding', substantially as described.

l1. in combination in a can soidering machine, means for moving' the cans and soif er feeding` means comprising a solder feed Wheel, a toothed Wheel connectet therewith, a friction drive for the toothed. .vheei, and a detent for control' the toothed Yffneei, said toothed Wheel being formed in segments which are adapted to be removed and replaced by other segments having diiierentiy spaced teeth, substantiaiy as described.

12. in combination, means for moving the cans past the soider feeding point, a shaft extending paraiiei *with the line of travel of' the cans, a plurality of soldering units carried by the said shaft, means for supporting and adjusting the said sha t verticaiiy toward and from the iine of travel of the cans, and means for driving the sain shaft, substantiaiiy as described.

i3. in combination in a can soldering machine, a series of soldering units, means for moving the cans past the said units in succession to receive solder therefrom, and means whereby the units may be set farther apart it 92eme or closer to each other to suit cans of diiierent sizes, substantially as described.

le. 1n combination in a can soldering machine, means for giving the cans a traveling' movement, a rotary shaft extending paraiiei with the direction or movement of said cans, a phirahty of soidering units thereon, and means for adj'usting the units along the shaft and for aa'ijusting the shaft vertically, substantially as described.

15. in combination, in a can soldering machine, means for moving he cans continuously past the solder station, means for preheating the cans, a guide tube for the soider pivotaily imported and thereby having1 movement by the contact of the solder with the continuousiy moving can to follow the movement of said can, and an aajustabie stop for determining the normal position of the schier feed tube, suhstantiaiiy as decribed.

in testimony vwhereof, I my signature in presence of tivo 'ivi nesses.

GEO. H. STEWRT.

W. BRENIHN, E. G. HOWELL. 

